Structure 200360351010040 · Chambers County, TX

SH 99 NB over Cedar Crossing Lp Rr

Carries SH 99 NB over Cedar Crossing Lp Rr, 1.3 Mi E Of FM 1405.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,680 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,680 ft end to end, longest span 210 ft: about 4.7 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built200620 years old
Length1680.1 ft512.1 m
Daily traffic4,007counted 2022
Last inspectedJune 2024every 24 months

Location

StateTexas
CountyChambers
Location1.3 Mi E Of FM 1405
CarriesSH 99 NB
CrossesCedar Crossing Lp Rr
Coordinates29.72797, -94.89529

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1680.1 ft (512.1 m)
Max Span210.0 ft (64 m)
Deck Width40.7 ft (12.4 m)
Deck Area6350.0 sq m
Main Spans3
Year Built2006

Traffic

Avg Daily Traffic4,007 (2022)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number200360351010040

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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